4820-00-449-0715 (10292943-2)
NSN 4820-00-449-0715 (NIIN 00-449-0715) is a safety relief valve in Federal Supply Class 4820, Valves, Nonpowered — a valve designed to automatically release excessive pressures. Manufacturer part number 10292943-2 (Us Army Aviation And Missile Command, CAGE 18876); also referenced as D559T2M140 (Circor Aerospace, Inc.).
Key specs: 200 psi maximum single response operating pressure; full characteristics table below. NIIN assigned May 1974; DEMIL A (none required); unit of issue EA (each), $34.71 gov standard price; export Schedule B 8481.40.0000; ships at 0.01 lb / 0.001 cu ft.